Home / 850,519.77-1,275,815.30-317,986.89

Finding the Fourth Proportional to 850,519.77, 1,275,815.30 and 317,986.89

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Solution

The fourth proportional to 850,519.77, 1,275,815.30 and 317,986.89 is: 476,993.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,519.77 : 1,275,815.30 = 317,986.89 : x
  2. Step 2: Convert to fraction form
    850,519.77/1,275,815.30 = 317,986.89/x
  3. Step 3: Cross multiply
    850,519.77x = 1,275,815.30 × 317,986.89
  4. Step 4: Simplify right side
    850,519.77x = 405,692,537,871.48
  5. Step 5: Solve for x
    x = 405,692,537,871.48/850,519.77
  6. Step 6: Final answer
    x = 476,993.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.